Table 4
Comparisons of laboratory findings at diagnosis with metabolic acidosis between normal and increased anion gap

Variable	Overall (n=152)	AG≤12 (n=90)	AG>12 (n=62)	P-value
Operation
Orthotopic neobladder replacement	140 (92.1)	82 (91.1)	58 (93.5)	0.584
Ileal conduit	12 (7.9)	8 (8.9)	4 (6.5)
Operation time (hr)	6.1±1.5	6.0±1.5	6.3±1.4	0.201
Laboratory findings
Total CO2 (mEq/L)	19.6±1.8	20.0±1.3	19.0±2.1	0.001
Sodium (mEq/L)	140.0±3.7	140.0±2.8	140.0±4.6	0.942
Potassium (mEq/L)	4.3±0.6	4.3±0.5	4.3±0.7	0.667
Chloride (mEq/L)	108.3±4.4	109.4±3.6	106.6±4.9	<0.001
Blood urea nitrogen (mg/dL)	25.8±11.2*	24.4±9.0†	27.8±13.7‡	0.094
Creatinine (mg/dL)	1.2±0.5*	1.1±0.4†	1.3±0.6‡	0.013
Albumin (g/dL)	3.1±0.5§	3.1±0.5ǁ	3.2±0.5¶	0.179

Values are presented as mean±standard deviation or number (%).
AG, anion gap.
Number of included patients was ^*149, ^†89, ^‡60, ^§81, ^ǁ48, and ^¶31.